Observe and photograph a species in its natural habitat

Learn where and when to observe a species in the wild, how to recognize it in the field, and what habitats it lives in. Get photography tips adapted to its behavior and capture stunning images without disturbing the animal. For full details, open the complete profile in the WildlifePhotographer app.

Red-breasted Merganser

Scientific name: Mergus serrator


Red-breasted Merganser

IUCN Status: Least Concern

Family: ANATIDAE

Group: Birds

Shyness: Suspicious

Safe distance: 30 m

Breeding season / Courtship: 15.05-30.06

Gestation: 30 à 31 jours

Births: 15.06-15.07


Habitat:
Estuaries, coastal bays, large lakes, slow rivers

Description:
The Red-breasted Merganser is a slender diving duck, measuring about 52 to 58 cm in length with a wingspan of 67 to 82 cm. The male features a dark green head with a shaggy crest, a white collar, a rusty speckled chest, and a thin red bill. The female has a reddish-brown head with a more subdued crest, a grayish body, and a duller red bill. This duck inhabits coastal waters, estuaries, bays, and large lakes, favoring saline or brackish areas. It primarily feeds on small fish, but also consumes crustaceans, aquatic insects, and amphibians, captured using its serrated bill adapted for fishing. A migratory species, it nests on the ground near water, often concealed under vegetation or in rocky crevices. Although listed as Least Concern by the IUCN, the Red-breasted Merganser is sensitive to water pollution, coastal habitat destruction, and human disturbances.

Recommended lens:
>=400 mm

Photography tips:
Use a telephoto lens to capture the Red-breasted Merganser without disturbing it, especially during its dives or when resting on the shores. Prefer the golden hours of morning or evening to highlight the reflections of its plumage. Be discreet and patient to observe natural behaviors.

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